Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

CHECK NAVIGATION SYSTEM SETTING
1. Enter the "MENU" screen by pressing the "MENU" switch.
2. Enter the volume adjustment screen by pressing the "Volume" switch.
  
  Fig 1: Identifying Multi-Display - Menu
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check that "OFF" is not selected.
  OK: OFF is not selected.
  
  Fig 2: Identifying Multi-Display - Volume
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: TURN VOICE GUIDANCE VOLUME UP TO 4 USING VOICE ADJUSTMENT SWITCHES

OK: Go to next step.
CHECK NAVIGATION SETTING
1. Enter the "MENU" screen by pressing the "MENU" switch
2. Enter the "Setup" screen by pressing the "Setup" switch
  
  Fig 3: Identifying Multi-Display - Menu
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check that "Auto Voice Guidance" is not OFF.
  OK: Auto voice guidance is not OFF.
4. Check if "Voice Guidance in All Modes" is ON.
  OK: Voice guidance in all modes is ON.
  
  Fig 4: Identifying Multi-Display - Setup
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: TURN AUTO VOICE GUIDANCE TO "ON"

OK: Go to next step.
CHECK THE MAP DISC
1. Check that the map disc is not deformed or cracked.
  OK: No deformations or cracks appear on the map disc.
  
  Fig 5: Identifying Map Disc
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE THE MAP DISC

OK: Go to next step.
CHECK RADIO RECEIVER ASSY
Check if audio sound can be heard from the driver's side speaker.

OK:

Audio sound can be heard.

NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE PROBLEM SYMPTOMS TABLE )

OK: REPLACE NAVIGATION ECU (SEE REPLACEMENT )